implement support for tunnelttl copy.
authordlg <dlg@openbsd.org>
Thu, 8 Feb 2018 23:53:20 +0000 (23:53 +0000)
committerdlg <dlg@openbsd.org>
Thu, 8 Feb 2018 23:53:20 +0000 (23:53 +0000)
commitb72a53fa14f459a89cd29f042fd1485ac16a76fb
tree356e69cf2c3a5d12d84d0551953c3d6cbedac758
parent05cff7c060415d6838e975bb7dedb6be05fe555f
implement support for tunnelttl copy.

if the ttl is set to copy, gre will copy the ttl in and out of the
encapsulated packet. it's probably a good idea to set this the same
on both ends of a tunnel.

egre doesn't support tunnelttl copy.
sys/net/if_gre.c